Recent posts

#1

UEXT / Re: MOD-IRDA faulty ?

Last post by LubOlimex - December 09, 2025, 09:13:22 AM

Umm easiest way is with another MOD-IRDA, but also with some device (TV, AIRCON, etc) that you know for sure what protocol it uses, and then use the same protocol on the PoE + MOD-IRDA combo.

#2

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 09, 2025, 06:22:48 AM

Good news, I patched the project, moved it from Arduino to Platformio and updated the IRremote library to 4.5.0

It now seems to be working, it receives IR from the remotes ok, how can I test its ability to send though ?

#3

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 09, 2025, 02:47:20 AM

Yes, I have tried a few remotes, but nothing seems to come through.

I did notice this in the console:

Code Select Expand

Reconnecting to /dev/cu.usbserial-1430 .... Connected!
...WiFi connected at: 10.1.30.6
Use this URL to connect: http://10.1.30.6/
Webserver started...
**************************************************************************************************
Thank you for using the IRremote library!
It seems, that you are using an old version 2.0 code / example.
This version is no longer supported!

Upgrade instructions can be found here:
 https://github.com/Arduino-IRremote/Arduino-IRremote?tab=readme-ov-file#converting-your-2x-program-to-the-4x-version

Please use one of the new code examples from the library,
 available at "File > Examples > Examples from Custom Libraries / IRremote".
Start with the SimpleReceiver or SimpleSender example.
The examples are documented here:
 https://github.com/Arduino-IRremote/Arduino-IRremote?tab=readme-ov-file#examples-for-this-library

Or just downgrade your library to version 2.6.0.

Thanks
**************************************************************************************************

So I'm still at a loss if its the hardware or the code, but either way, it's not working.

#4

UEXT / Re: MOD-IRDA faulty ?

Last post by LubOlimex - December 08, 2025, 04:52:26 PM

Did you try clicking some remotes on it?

#5

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 08, 2025, 02:04:44 PM

I tried the example program, it provides a web server and after initializing MOD-IRDA it states "Connected", but does not seem to show anything else or allow me to send anything.

If I cant get it going tomorrow, I'm going to assume the LED is broken and try de-soldering it and swapping it out.

#6

FPGA / Re: Questions about GateMateA1...

Last post by LubOlimex - December 08, 2025, 10:34:38 AM

1. Thanks for notice. It is now uploaded.

2. No idea. Some bit file was provided by Cologne community if I remember correct. The software usage is detailed here: https://github.com/OLIMEX/GateMateA1-EVB/blob/main/SOFTWARE/ug1002-toolchain-install-latest.pdf

3. Yes, we published the uf2 file that we ship the boards with, here: https://github.com/OLIMEX/GateMateA1-EVB/tree/main/SOFTWARE/dirtyJtag

I believe we took it from here: https://github.com/colognechip/gatemate_ila/tree/main/Olimex_DirtyJTAG_firmware

It is popular board, you can find a lot of projects online, like check this one:

https://gitlab.com/x653/spaceinvaders-fpga

#7

UEXT / Re: MOD-IRDA faulty ?

Last post by SirExie - December 08, 2025, 10:00:00 AM

Thankyou LubOlimex,

I think the question was - is there any way of testing the MOD-IRDA outside the code ? like, just electrically ?

In the meantime, I'll try compiling the demo and see if I can get it to transmit something useful.

#8

A20 / Re: Question about OLinuXino b...

Last post by LubOlimex - December 08, 2025, 09:15:54 AM

Which A20 OLinuXino board more specifically? These have different requirements. Is it MICRO, LIME, LIME2, SOM, BASE-SOM.... What is your setup? What do you have connected to it?

#9

UEXT / Re: MOD-IRDA faulty ?

Last post by LubOlimex - December 08, 2025, 09:13:51 AM

The problem is somewhere in your software. We've used MOD-IRDA with ESP32-POE boards in the past, specifically in this big web-server demo:

https://github.com/OLIMEX/ESP32-POE/blob/master/SOFTWARE/ARDUINO/ESP32_PoE_WebServer_Demo/ESP32_PoE_WebServer_Demo.ino

#10

UEXT / MOD-IRDA faulty ?

Last post by SirExie - December 06, 2025, 02:49:38 PM

Hi Folks,

I have a MOD-IRDA I'm using with an ESP32-POE-ISO-IND. The UEXT port makes this simple, but I have not been able to transmit via the module.

I'm using ESPHome, and I have it set to use GPIO4, but the client device never responds. I tried filming with the phone camera, but the IR is not visible.

I then tested the UEXT port using a Saleae, and all the pins work fine and I could even decode IRDA.

So my final test was ti check resistance across the the IR LED, and testing both polarities at 200 Ohm was an open circuit. Not what I expected, so I think the LED is faulty ?

No point posting it back, the local electronics shop have 3mm IR LED's for $1.50 so I'll try swapping this out first and see how I go.

How likely is it that this is the problem ? is there any other test I can do ?